JPH0237537Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a material supply device for a molding press that clamps and supplies flexible mat-like materials such as urethane foam, uncompressed hardboard, and felt to a molding press.

Conventionally, when feeding a flexible pine-like material such as breathable urethane foam or felt to a mold,
Generally, this is done manually because suction cups or other means of extraction cannot be used, and when supplying large pine-shaped, breathable materials, it cannot be handled by one person and requires multiple workers, which increases labor costs. Since it is a manual process, there are problems such as very poor workability and high processing costs, and there have been many requests within the industry for automation of the above-mentioned work.

The present invention has been developed in response to the above-mentioned needs, namely, to provide a material supply device for a molding press that can automatically supply a flexible, pine-like material with air permeability by installing a plurality of clamping tools on a chain conveyor. There is something to do.

An embodiment of the present invention will be described based on the drawings.
Reference numeral 1 denotes a chain conveyor in which two chains 1a and 1a' are arranged in parallel, and each link of the chains 1a and 1a' has a mounting piece 1 in which a tap hole 1c is bored.
b are provided facing each other. Also, chain conveyor 1
is rotated by a driving side chain wheel 1d and a chain wheel 1e, and the chains 1a and 1a' are given slack on the lower side of the chain conveyor 1. Reference numeral 2 denotes a plurality of chains 1a, 1a' which are installed at appropriate intervals between the mounting pieces 1b.

Reference numeral 3 denotes a clamping tool having clamping claws 31a and 32a at the tips that can be opened and closed vertically to clamp the material 4;
The clamping tool 3 includes a clamping body 31, a movable plate 32, an operating rod 33, a spring 34, a spring 35, and a pin 3.
6 and pin 37. Next, each part of the clamping tool 3 will be explained in detail. A clamping claw portion 31a is formed at the tip of the clamping body 31, and a pin 37 is inserted near the center, so that the operating rod 33 can rotate freely to clamp the clamping member 3. A protrusion 31b is provided upright, protrusion pieces 31c are provided near both sides of the rear end, and a mounting piece 1b is provided.
31 used when attaching the clamping tool 3 directly to the
d is provided. A pinching claw portion 32a that engages with the pinching claw 31a is formed at the tip of the movable plate 32, and an elongated hole 32b for escape when the operating rod 33 rotates is bored near the center of the movable plate 32. Projecting pieces 32c are provided near both sides of the rear end. The protruding piece 3
2c is fitted with the protrusion 31c, and a pin 36 is inserted into this fitting portion, thereby making the movable plate 32 rotatable around the pin 36. The spring 34 is contracted and attached between the clamping body 31 and the movable plate 32, and has an elastic force that constantly pushes the movable plate 32 up. The spring 35 is attached to the operating rod 33 and the rear end of the clamp body 31 to apply a force that causes the operating rod 33 to always fall forward. A plurality of these clamping tools 3 may be attached to the mounting piece 1b facing each other at appropriate intervals (see FIG. 6), or the clamping tools 3 may be slid on the upper part of the rod 2 via a guide plate 5, which will be described later. In some cases, a plurality of them may be freely provided (see FIG. 7). When the clamping tool 3 is attached to the slats 2, the claws are not directed in the same direction for all the slats 2, but the clamping tools 3 are mounted facing each other so that the material 4 can be clamped.
are arranged (see Figures 2 and 3). Reference numeral 5 denotes a guide plate having a substantially C-shaped cross section that is fixed to the lower surface of the clamping tool 3, and the guide plate 5 is slidably fitted to the lever 2 and the lower part of the clamping tool 3 is attached with a fastening member 6. . Reference numeral 7 denotes a U-shaped fixed guide fixed at a position to hold the material 4, and the fixed guide 7 serves as a guide to prevent the chains 1a, 1a' from shifting even when they are moved up and down. 8 is the mold 9 of the molding press 9
This is a movable guide arranged at position a and can be moved up and down, 10 is a cylinder that moves the mold 9a up and down, and 11 is a cylinder that moves the movable guide 8 up and down. Reference numeral 12 denotes a fixed guide that fixes the product processed by the molding press 9 at a position from which it is removed.

Next, to explain how to use the present invention, first, install a plurality of rods 2 on the mounting piece 1b according to the size of the material 4 (see Fig. 2), and then decide the placement of the clamping tool 3, and then attach and detach it freely. Attach it with the fastening member 6. At this time, when the clamping tool 3 is installed on the upper part of the pole 2, the clamping tool 3 is fitted onto the pole 2 via the guide plate 5 (see FIG. 7), and the clamping tool 3 is attached to the mounting piece 1b.
In the case where the clamping tool 3 is provided in the mounting piece 1b, the clamping tool 3 is directly attached to the mounting piece 1b using the fastening member 6 (see FIG. 6). After attaching the step 2, the clamping tool 3 on the step 2 is moved to an appropriate position where it can hold the material 4 and set. Further, the clamping tool 3 is left open so that it can be clamped. Next, the material 4 is placed on the clamping claws 31a of the plurality of clamping bodies 31 in advance, and then the material 4 is clamped by pressing the movable plate 32 from above using an appropriate method, such as a cylinder (not shown).
At this time, the movable plate 32 rotates around the pin 36, but since the position of the pinching claw part 32a is below the height of the pin 36 and engages with the claw part a, as a result, the pinching claw part 32a grips the material 4. When the pin 36 is pulled in and the material 4 is held between the pinching claws 31a and 32a, the material 4 is stuck to the position shown in FIG. 1a [see FIG. 5a]. As the material 4 is held, the movable plate 3 is pushed out from behind by an appropriate method such as a cylinder (not shown).
2, the movable plate 32 can be fixed so as not to open upward. At this time, if a plurality of clamping tools 3 are attached to both the upper part of the rod 2 and the mounting piece 1b, and the material 4 is clamped and stuck from all sides, even the material 4 that easily wrinkles can be supplied.

After the material 4 is clamped, the drive side chain wheel 1d is driven and the chains 1a and 1a' transport the material 4 to the position shown in FIG. . Then, the cylinder 10 is activated and the upper mold 9a is pushed down. At this time,
The drive side chain wheel 1d is reversed and extends lower than when the chain wheel 1e. As a result, the material 4 is placed on the convex surface of the lower mold 9a and is also molded. After the molding is completed, the upper mold 9a is first lifted by the cylinder 10, and then the molded product is removed from the lower mold 9a by lifting the movable guide 8. Furthermore, at this time,
Chains 1a and 1a' have slack. However, when the drive side chain wheel 1d is rotated, the rotation of the chain wheel 1e is reduced due to slack in the chains 1a and 1a'.
It will be slower than d. Therefore, the drive side chain wheel 1d rotates faster than the chain wheel 1e until there is no slack,
When the slack disappears, the chain conveyor 1 is stretched and starts conveying. When the molded product is transported to the position shown in FIG. 1c, the spring 34 is activated by operating the operating rod 33 in the direction of the arrow shown in FIG. The movable plate 32 is pushed up by the elastic force to release the clamping tool 3, and the molded item is removed.

In this way, the present invention is characterized in that the clamping tools 3 are arranged facing each other, and the movable guide 2, which can be moved up and down, is placed in the mold 9.
By arranging it in position a, even flexible sheet-like materials, breathable urethane foam, or flexible pine-like materials 4 such as felt can be extremely easily clamped and stuck, wrinkles are smoothed out, and the work is easy. It becomes possible to automatically supply the molding press 9 even if no one is present. or,
In the case where a plurality of rods 2 are removably installed on the mounting piece 1b at appropriate intervals, a plurality of clamping tools 3 are slidably provided on the upper part of the rods 2, and the installation interval of the rods 2 is adjusted. By changing the size, it is possible to supply materials 4 ranging from small materials to materials 4 that are long in the conveyance direction, so that material 4 of an optimal size can be supplied to the mold 9a. Therefore, there is no need for a worker to supply the material 4, making it possible to automate the supply, and the workability is extremely high, resulting in great practical effects such as being able to reduce processing costs.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram showing an embodiment of the present invention, Fig. 2 is a plan view of main parts of a chain conveyor showing an embodiment of the present invention, Fig. 3 is a front view of Fig. 2, and Fig. 4 is an explanatory diagram of the invention. FIG. 5 is an explanatory diagram showing the operation of the clamping tool, FIG. 6 is an explanatory diagram showing the clamping tool attached directly to the mounting piece, and FIG. 7 is an explanatory diagram showing the clamping tool attached directly to the mounting piece. It is an explanatory view showing a state where it is attached to a pole. 1...Chain conveyor, 1b...Mounting piece, 2...
...Ban, 3... Holding tool, 4... Material, 31a, 32
a...Pinch claw part, 7, 12...Fixed guide, 8...
...Movable guide, 9...Molding press, 9a...Mold.

Claims (1)

[Scope of utility model registration request] In a material supply device that supplies a flexible mat-shaped material 4 to a molding press 9 using an endless chain conveyor 1, each link of the chain conveyor 1 is provided with a mounting piece 1b, and the mounting pieces 1b are provided with appropriate intervals. De-san 2
A plurality of fixed guides 7, 12 are installed to guide the chain conveyor 1, and a movable guide 8 is movable up and down. A plurality of clamping tools 3 are arranged at the positions of the molds 9a of the molding press 9, and have clamping claws 31a and 32a at their tips that can be opened and closed vertically.
A material supply device for a molding press, characterized in that the material supply device for a forming press is characterized in that it is movably provided on the upper part of the rod 2 or attached to the attachment piece 1b so that the rods a and 32a face each other.